Truth be told, if there ever was a time to go PC it would be now. The route MS is going with the Scorpio or Xbox in general of having it games be fully backwards compatible with the Xbox One and available on PC's with Windows 10 means devs are going to need to plan new titles from the beginning to run on multiple configurations rather than on only one or two configurations (PS and Xbox), then just throwing a quick port at the PC.
Scorpio having an 8 core (I guess quad core with hyperthreading) means there is incentive for devs to abandon the single threaded applications and embrace multi-threaded processes, further providing a boon to PC gaming.
Finally, if as a lot of us are theorizing, Scorpio is using a Zen APU crossfired with a Polaris GPU, then that means that multi-gpu set-ups should be the norm, rather than the exception.
I take nothing away from what little was unveiled about project scorpio as having any negative effects on PC gaming, and a bunch of positives.